CN109513899A - A kind of large-scale intelligent fission synchronzed press device and boosting method - Google Patents
A kind of large-scale intelligent fission synchronzed press device and boosting method Download PDFInfo
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- CN109513899A CN109513899A CN201811360767.XA CN201811360767A CN109513899A CN 109513899 A CN109513899 A CN 109513899A CN 201811360767 A CN201811360767 A CN 201811360767A CN 109513899 A CN109513899 A CN 109513899A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
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Abstract
The present invention provides a kind of large-scale intelligent fission synchronzed press device and boosting methods, pressurizing device includes the multiple split type outer containers being arranged from top to bottom, air supply system, intelligence control system, data transmission system and multiple mobile modules, it is connect by positioning with fastening system between split type outer container described in adjacent two, multiple mobile modules are arranged in the inside of the split type outer container of middle and upper part, air supply system, intelligence control system and data transmission system are arranged at the outside of multiple split type outer containers, mobile module includes that porous ceramics goes out vent plug, snorkel, Sonar Probe, temperature probe and the ventilating joint being arranged on snorkel, porous ceramics, which goes out vent plug harmony, to be received probe and respectively penetrates the both ends of snorkel, temperature probe passes through porous ceramics and goes out vent plug.The present invention solves the problems, such as that existing large thin-wall large thin-wall alloy-steel casting consistency and mechanical property dispersibility are exceeded, and the consistency of casting and mechanical property dispersibility can be made to reduce by 80%.
Description
Technical field
The invention belongs to casting technology fields, more particularly, to a kind of large-scale intelligent fission synchronzed press device and pressurization side
Method.
Background technique
Antigravity casting has great advantage in molding large thin wall alloy casting, is widely used in naval vessel, underwater and army
The required casting forming of thing industry, material are related to titanium alloy, aluminium alloy, titanium-aluminium alloy, high temperature alloy etc..With this kind of component
Size is increasing, often occurs casting middle and upper part " local decompression " phenomenon in antigravity casting forming process, leads to height side
Upward consistency and the dispersed exceeded problem of mechanical property.
The main cause that " local decompression " phenomenon generates is casting excessive height, and pressing force is conducted to casting in crucible
Lose excessive when at the top of part, second the reason is that casting structure is complicated, pressure conduction channel is excessively complicated or is truncated halfway,
Pressure conduction low efficiency or failure, " local decompression " phenomenon cannot only lean on pressurization to improve between metal bath surface and casting
Pressure difference solves, therefore traditional low pressure casting, adjustable pressure casting and suction pouring all can't resolve " local decompression " problem；Difference
Die casting, which is made, realizes that freezing pressure is promoted by raising environmental pressure, but can bring very serious problem, that is, production efficiency
It is greatly reduced, since environmental pressure increase makes the forming capacity of molten metal decline to a great extent, and Casting Equipment is proposed higher
It is required that needing to add the pressure vessels such as two-way pressure tank to increase environmental pressure, and environmental pressure can only be single size
Uniform pressure, so still due to the consistency and mechanical property dispersion problem of different with the structure generation of casting height itself
It not can solve.Therefore need to design a kind of pressurizing device, what it can be pinpointed with structure difference in different parts according to casting height
Apply pressure appropriate, solidifies casting actually at the same pressure, it is final to solve consistency and mechanical property point
Dissipate the exceeded problem of property.
Summary of the invention
In view of this, the present invention is directed to propose a kind of large-scale intelligent fission synchronzed press device and boosting method, it is not required to pair
Existing scrap build directly can intelligently cooperate existing equipment realization to be existed according to casting height and structure difference using the present apparatus
The application pressure appropriate of different parts fixed point, solidifies casting actually at the same pressure, final to solve densification
Degree and the dispersed exceeded problem of mechanical property.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of large-scale intelligent fission synchronzed press device, including be arranged from top to bottom multiple split type outer containers, positioning with
Fastening system, air supply system, intelligence control system, data transmission system and multiple mobile modules divide described in adjacent two
It is connect by positioning with fastening system between body formula outer container, multiple mobile modules are arranged in the fission of middle and upper part
The inside of formula outer container, the air supply system, intelligence control system and data transmission system are arranged at multiple split type outer containers
Outside；
The mobile module includes that porous ceramics goes out vent plug, snorkel, Sonar Probe, temperature probe and ventilating joint, institute
The porous ceramics stated goes out one end that vent plug penetrates snorkel, and is slidably connected with snorkel, and the temperature probe passes through porous
Ceramics go out vent plug setting, and the Sonar Probe is penetrated from the other end of snorkel to snorkel, and the ventilating joint is set
It sets on snorkel；
The air supply system includes gas source and gas circuit pipeline, and gas circuit pipeline passes through the gas circuit linked hole on split type outer container
It is connect with the ventilating joint of mobile module, the Sonar Probe and temperature probe on mobile module pass through respectively on split type outer container
Sonar line linked hole and thermometric line linked hole are connect with data transmission system, the data transmission system and intelligence control system
Electrical connection, the intelligence control system are connect with gas source by data line.
Further, the positioning and fastening system include fastening bolt and positioning pin, the outer wall of each split type outer container
On be symmetrically arranged with one group of fixed ear, fixed ear is equipped with positioning pin connecting hole and fastening bolt connecting hole.
Further, it is sealed between two neighboring split type outer container by high temperature silicon rubber mat, and in the split type outer container
Upper and lower bottom surface be equipped with installation high temperature silicon rubber mat sealing station.
Further, the mobile module is fixed by the bracket on the guide groove on the inner wall of split type outer container.
Further, the split type outer container is hollow cylindrical structure.
Further, the material of the split type outer container is aluminium alloy or cast iron.
Further, it is zirconium oxide or aluminium oxide that porous ceramics used in the mobile module, which goes out vent plug material,.
Further, porous ceramics used in the mobile module goes out the hole average-size of vent plug less than 125 microns.
Using a kind of above-mentioned boosting method of large-scale intelligent fission synchronzed press device, realize according to the following steps:
Step 1: standby case: the number of the split type outer container needed for being selected according to 1.5 times of height of casting height, according to casting
Structure needs the number of the mobile module needed for selecting, and mobile module is fixed on the guide groove in corresponding split type outer container
On, respectively by Sonar Probe, temperature probe, ventilating joint and the sonar line being each passed through on split type outer container on mobile module
Sonar data line, temperature measurement data line and the gas circuit pipeline of linked hole, thermometric line linked hole and gas circuit linked hole connect；
Step 2: branch mailbox moulding: needing branch mailbox moulding according to casting mold, the porous ceramics of mobile module is gone out vent plug when moulding
Direct aligning type chamber, other positions of mobile module are wrapped up in bury together with single layer sulfuric acid paper bag to be scheduled on split type outer container, is formed and is divided
Group sand mold；
Step 3: assembling: grouping sand mold is assembled in sequence, it is close using high temperature silicon rubber mat between adjacent two groups
Envelope ensures accurate positioning between adjacent split type outer container by fixed ear using positioning and fixed system, and is tightly coupled one
It rises, it is ensured that high temperature silicon rubber mat coupling mechanism force required when sealing forms a block mold after connecting；
Step 4: line: by split type outer container temperature measurement data line and sonar data line be connected respectively to data transmission
The gas circuit pipeline that gas circuit linked hole is connect on split type outer container is connect by system with each road interface of gas source, by data transmission system with
Intelligence control system connection, the control line of intelligence control system is connected with gas source；Required pressurization, pressure maintaining and exhaust are set
Parameter；
Step 5: anti-gravity pouring: the block mold connected is placed on anti-gravity pouring device, by melting,
Refined metals liquid, then normally-open Anti-gravity device such as rises liquid, fills type, pressurization, pressure maintaining, exhaust at the process flows shaped casting；
When process flow proceeds to pressure increase step, intelligence control system is automatically turned on；
Step 6: synchronous pressurization: when molten metal is full of type chamber, the porous ceramics on mobile module goes out vent plug in molten metal
It is moved under pressure from trend snorkel, temperature probe and molten metal contacts temperature collection signal, while porous ceramics goes out vent plug
Contact Sonar Probe precisely tests pressure, after intelligence control system acquisition has reached pressure increase step signal, starts to control gas source
It is pressurized with anti-gravity equipment synchronous intelligent, and synchronous progress pressure maintaining period；
Step 7: synchronous exhaust: when process is exhausted in Anti-gravity device, intelligence control system control gas source starts to synchronize
Exhaust；
Step 8: unpacking: unloading block mold after the completion of exhaust, disconnect line and ventilation line, release fixed and fixed
Position system, separates each split type outer container, recycles mobile module, and it is consumptive material that the porous ceramics of mobile module, which goes out vent plug, stays in casting
It is upper, subsequent to be cleared up together with running gate system.
Further, the branch mailbox moulding in step 2 uses resin self-setting sand moulding.
Compared with the existing technology, a kind of large-scale intelligent fission synchronzed press device of the present invention has the advantage that
A kind of large-scale intelligent fission synchronzed press device of the present invention,
1, it realizes and is not required to directly can intelligently cooperate existing equipment real using the present apparatus existing anti-gravity scrap build
The application pressure appropriate now pinpointed according to casting height and structure in different parts, finally makes casting actually in identical pressure
It is solidified under power, finally solves the problems, such as that consistency and mechanical property dispersibility are exceeded, consistency and mechanical property dispersibility reduce
80%.
2, it solves casting middle and upper part " local decompression " phenomenon often occur in antigravity casting forming process, may be implemented more
Differentiation pressurization, large thin-wall alloy-steel casting technological design personnel need unrestricted choice pressurization position according to design, make point simultaneously
Casting Technology Design has greater flexibility.
3, directly cooperation existing equipment uses, to the existing place of promotion and utilization rate of equipment and installations, used mobile module body
Product it is small, unit casting can be used quantity it is more, use can be recycled, and mutually finish changing, improve equipment utilization rate and use at
This.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of large-scale intelligent fission synchronzed press device described in the embodiment of the present invention；
Fig. 2 is the schematic diagram of split type outer container described in the embodiment of the present invention and positioning and fixed system；
Fig. 3 is the structural schematic diagram of mobile module.
Description of symbols:
The split type outer container of 1-, 2- positioning and fastening system, 3- air supply system, 4- intelligence control system, 5- data transmission system
System, 6- mobile module, 7- fixed ear, 8- fastening bolt, 9- positioning pin, 10- porous ceramics go out vent plug, 11- snorkel, 12- sound
Receive probe, 13- temperature probe, 14- ventilating joint, 15- bracket, 16- guide groove, 17- gas circuit intercommunicating pore, 18- sonar line intercommunicating pore,
19- thermometric line intercommunicating pore, 20- high temperature silicon rubber mat.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1-Figure 3, a kind of large-scale intelligent fission synchronzed press device, including the multiple fissions being arranged from top to bottom
Formula outer container 1, positioning and fastening system 2, air supply system 3, intelligence control system 4, data transmission system 5 and multiple mobile modules 6,
It is connect by positioning with fastening system 2 between split type outer container 1 described in adjacent two, multiple mobile modules 6
It is arranged in the inside of the split type outer container 1 of middle and upper part, the air supply system 3, intelligence control system 4 and data transmission system
System 5 is arranged at the outside of multiple split type outer containers 1；
The mobile module 6 includes that porous ceramics goes out vent plug 10, snorkel 11, Sonar Probe 13, temperature probe 13 and leads to
Gas connector 14, the porous ceramics goes out vent plug 10 and penetrates one end of snorkel 11 and be slidably connected with snorkel 11, described
Temperature probe 13 passes through porous ceramics and goes out the setting of vent plug 10, and the Sonar Probe 13 is penetrated from the other end of snorkel 11 to logical
In tracheae 11, the ventilating joint 14 is arranged on snorkel 11；
The air supply system includes gas source and gas circuit pipeline, and gas circuit pipeline passes through the gas circuit connection on split type outer container 1
Hole 17 is connect with the ventilating joint 14 of mobile module 6, and the Sonar Probe 12 and temperature probe 13 on mobile module 6 are respectively by dividing
Sonar line linked hole 18 and thermometric line linked hole 19 on body formula outer container 1 are connect with data transmission system 5, the data transmission
System 5 is electrically connected with intelligence control system 4, and the intelligence control system 4 is connect with gas source by data line.
Positioning includes fastening bolt 8 and positioning pin 9 with fastening system 2, is symmetrically set on the outer wall of each split type outer container 1
There is one group of fixed ear 7, fixed ear 7 is equipped with positioning pin connecting hole and fastening bolt connecting hole.
Between two neighboring split type outer container 1 by high temperature silicon rubber mat 20 seal, and the split type outer container 1 it is upper,
Bottom surface is equipped with the sealing station of installation high temperature silicon rubber mat 20, and sealing effect is good, is conducive to the molding of casting.
Mobile module 6 is fixed on the guide groove 16 on the inner wall of split type outer container 1 by bracket 15, and guide groove 16 is annular
Slot, mobile module 6 are can be set as needed in any position of split type outer container 1, and flexibility ratio is high.
Split type outer container 1 is hollow cylindrical structure, be ensure that in pressure process, respectively to same pressure.
The material of split type outer container 1 is aluminium alloy or cast iron.
The material that the porous ceramics of mobile module 6 goes out vent plug 10 is zirconium oxide or aluminium oxide.
The porous ceramics of mobile module 6 goes out the hole average-size of vent plug 10 less than 125 microns.
A kind of boosting method of large-scale intelligent fission synchronzed press device, including
Step 1: standby case: 9 split type outer containers 1 are selected according to 1.5 times of height (total height 2.25m) of casting height, according to
Casting structure needs to select 35 mobile modules 6, and mobile module 6 is fixed on to the split type outer container 1 of the upper position of casting
On interior guide groove 16, respectively by mobile module 6 Sonar Probe 12, temperature probe 13, ventilating joint 14 and be each passed through point
Sonar line linked hole 18, thermometric line linked hole 19 and the sonar data line of gas circuit linked hole 17, temperature measurement data on body formula outer container 1
Line and gas circuit pipeline connect；
Step 2: branch mailbox moulding: branch mailbox moulding is needed according to casting mold, by the porous ceramics outlet of mobile module 1 when moulding
10 direct aligning type chambers are filled in, other positions of mobile module 6, which are wrapped up in bury together with single layer sulfuric acid paper bag, to be scheduled on split type outer container 1,
Form grouping sand mold；Branch mailbox moulding uses resin self-setting sand moulding；
Step 3: assembling: grouping sand mold is assembled in sequence, it is close using high temperature silicon rubber mat 20 between adjacent two groups
Envelope ensures accurate positioning between adjacent split type outer container 1 by fixed ear 7 using positioning and fixed system 2, and is tightly coupled
Together, it is ensured that the coupling mechanism force required when sealing of high temperature silicon rubber mat 20 forms a block mold after connecting；
Step 4: line: by split type outer container 1 temperature measurement data line and sonar data line be connected respectively to data transmission
The gas circuit pipeline for connecing gas circuit linked hole 17 on split type outer container 1 is connect, by data transmission system by system with each road interface of gas source
System 5 is connect with intelligence control system 4, and the control line of intelligence control system 4 is connected with gas source；Pressurization, guarantor needed for being arranged
Pressure and exhaust parameter；
Step 5: anti-gravity pouring: the block mold connected is placed on anti-gravity pouring device, by melting,
Refined metals liquid, then normally-open Anti-gravity device such as rises liquid, fills type, pressurization, pressure maintaining, exhaust at the process flows shaped casting；
When process flow proceeds to pressure increase step, intelligence control system 4 is automatically turned on；
Step 6: synchronous pressurization: when molten metal is full of type chamber, the porous ceramics on mobile module 1 goes out vent plug 10 in gold
Belong to and being moved under hydraulic coupling from trend snorkel 11, temperature probe 13 and molten metal contacts temperature collection signal, while porous pottery
Porcelain goes out vent plug 10 and contacts the precisely test pressure of Sonar Probe 12, after the acquisition of intelligence control system 4 has reached pressure increase step signal,
Start to control gas source and anti-gravity equipment synchronous intelligent pressurization, and synchronizes and carry out pressure maintaining period；
Step 7: synchronous exhaust: when process is exhausted in Anti-gravity device, intelligence control system 4 controls gas source and starts together
Step exhaust；
Step 8: unpacking: unloading block mold after the completion of exhaust, disconnect line and ventilation line, release fixed and fixed
Position system 2, separates each split type outer container 1, recycles mobile module 6, and it is consumptive material that the porous ceramics of mobile module 6, which goes out vent plug 10, is stayed
On casting, subsequent cleared up together with running gate system.
The present embodiment the method shapes ZL205A alloy large-size thin wall complex structure casting diameter 2000mm, height
1500mm, minimum wall thickness (MINI W.) 3mm, synchronous pressurization breach the limit of existing counter-gravity casting equipment, and large-scale intelligent of the present invention is seperated
Synchronzed press device may be implemented to be not required to directly can intelligently cooperate existing existing anti-gravity scrap build using the present apparatus
Equipment realizes the application pressure appropriate pinpointed according to casting height and structure in different parts, finally makes casting actually in phase
Same Under Pressure Solidification finally solves the problems, such as that consistency and mechanical property dispersibility are exceeded, consistency and mechanical property dispersion
Property reduce by 80%.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of large-scale intelligent fission synchronzed press device, it is characterised in that: multiple split type outer including what is be arranged from top to bottom
Case (1), positioning and fastening system (2), air supply system (3), intelligence control system (4), data transmission system (5) and multiple movements
Module (6) is connect between split type outer container (1) described in adjacent two with fastening system (2) by positioning, it is multiple described in
Mobile module (6) be arranged in middle and upper part split type outer container (1) inside, the air supply system (3), intelligent control
System (4) and data transmission system (5) are arranged at the outside of multiple split type outer containers (1)；
The mobile module (6) includes that porous ceramics goes out vent plug (10), snorkel (11), Sonar Probe (13), temperature probe
(13) and ventilating joint (14), the porous ceramics go out vent plug (10) penetrate snorkel (11) one end and with snorkel (11)
It is slidably connected, the temperature probe (13) passes through porous ceramics and goes out vent plug (10) setting, and the Sonar Probe (13) is from logical
The other end of tracheae (11) is penetrated to snorkel (11), and the ventilating joint (14) is arranged on snorkel (11)；
The air supply system includes gas source and gas circuit pipeline, and gas circuit pipeline passes through the gas circuit linked hole on split type outer container (1)
(17) it is connect with the ventilating joint (14) of mobile module (6), Sonar Probe (12) and temperature probe (13) on mobile module (6)
Pass through sonar line linked hole (18) on split type outer container (1) and thermometric line linked hole (19) and data transmission system (5) respectively
Connection, the data transmission system (5) are electrically connected with intelligence control system (4), the intelligence control system (4) and gas source
It is connected by data line.
2. a kind of large-scale intelligent fission synchronzed press device according to claim 1, it is characterised in that: the positioning with it is tight
Gu system (2) includes fastening bolt (8) and positioning pin (9), it is symmetrically arranged with one group on the outer wall of each split type outer container (1) and consolidates
Determine ear (7), fixed ear (7) is equipped with positioning pin connecting hole and fastening bolt connecting hole.
3. a kind of large-scale intelligent fission synchronzed press device according to claim 2, it is characterised in that: two neighboring fission
It is sealed between formula outer container (1) by high temperature silicon rubber mat (20), and is equipped with installation in the upper and lower bottom surface of the split type outer container (1)
The sealing station of high temperature silicon rubber mat (20).
4. a kind of large-scale intelligent fission synchronzed press device according to claim 3, it is characterised in that: the mobile module
(6) it is fixed on the guide groove on the inner wall of split type outer container (1) (16) by bracket (15).
5. a kind of large-scale intelligent fission synchronzed press device according to claim 4, it is characterised in that: described split type outer
Case (1) is hollow cylindrical structure.
6. a kind of large-scale intelligent fission synchronzed press device according to any one of claims 1-5, it is characterised in that: institute
The material for stating split type outer container (1) is aluminium alloy or cast iron.
7. a kind of large-scale intelligent fission synchronzed press device according to claim 6, it is characterised in that: the mobile module
(6) material that porous ceramics goes out vent plug (10) is zirconium oxide or aluminium oxide.
8. a kind of large-scale intelligent fission synchronzed press device according to claim 7, it is characterised in that: the mobile module
(6) porous ceramics goes out the hole average-size of vent plug (10) less than 125 microns.
9. a kind of boosting method of large-scale intelligent fission synchronzed press device according to any one of claim 4-5,
It is characterized in that: including
Step 1: standby case: the number of the split type outer container (1) needed for being selected according to 1.5 times of height of casting height, according to casting knot
Structure needs the number of the mobile module (6) needed for selecting, and mobile module (6) is fixed in corresponding split type outer container (1)
Guide groove (16) on, respectively by mobile module (6) Sonar Probe (12), temperature probe (13), ventilating joint (14) with point
Not Chuan Guo sonar line linked hole (18) on split type outer container (1), thermometric line linked hole (19) and gas circuit linked hole (17) sound
Receiving data line, temperature measurement data line and gas circuit pipeline connects；
Step 2: branch mailbox moulding: needing branch mailbox moulding according to casting mold, the porous ceramics of mobile module (1) is gone out vent plug when moulding
(10) direct aligning type chamber, other positions of mobile module (6), which are wrapped up in bury together with single layer sulfuric acid paper bag, is scheduled on split type outer container (1)
On, form grouping sand mold；
Step 3: assembling: grouping sand mold is assembled in sequence, it is close using high temperature silicon rubber mat (20) between adjacent two groups
Envelope ensures accurate positioning between adjacent split type outer container (1) by fixed ear (7) using positioning and fixed system (2), and tightly
It links together, it is ensured that high temperature silicon rubber mat (20) coupling mechanism force required when sealing forms a block mold after connecting；
Step 4: line: by split type outer container (1) temperature measurement data line and sonar data line be connected respectively to data transmission system
System, the gas circuit pipeline for connecing gas circuit linked hole (17) on split type outer container (1) is connect with each road interface of gas source, data are transmitted
System (5) is connect with intelligence control system (4), and the control line of intelligence control system (4) is connected with gas source；Needed for being arranged
Pressurization, pressure maintaining and exhaust parameter；
Step 5: anti-gravity pouring: the block mold connected being placed on anti-gravity pouring device, melting, refining are passed through
Molten metal, then normally-open Anti-gravity device such as rises liquid, fills type, pressurization, pressure maintaining, exhaust at the process flows shaped casting；Work as work
Intelligence control system (4) automatically turns on when skill process proceeds to pressure increase step；
Step 6: synchronous pressurization: when molten metal is full of type chamber, the porous ceramics on mobile module (1) goes out vent plug (10) in gold
Belong to and being moved under hydraulic coupling from trend snorkel (11), temperature probe (13) and molten metal contacts temperature collection signal, and meanwhile it is more
Hole ceramics go out vent plug (10) contact Sonar Probe (12) and precisely test pressure, and intelligence control system (4) acquisition has reached pressurization
After step signal, start to control gas source and anti-gravity equipment synchronous intelligent pressurization, and synchronize and carry out pressure maintaining period；
Step 7: synchronous exhaust: when process is exhausted in Anti-gravity device, intelligence control system (4) control gas source starts to synchronize
Exhaust；
Step 8: unpacking: unloading block mold after the completion of exhaust, disconnect line and ventilation line, releasing fixed and positioning is
It unites (2), separates each split type outer container (1), recycle mobile module (6), the porous ceramics of mobile module (6) goes out vent plug (10) for consumption
Material is stayed on casting, subsequent is cleared up together with running gate system.
10. a kind of large-scale intelligent fission synchronzed press device according to claim 9 and boosting method, it is characterised in that:
Branch mailbox moulding in step 2 uses resin self-setting sand moulding.
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| CN202824612U (en) * | 2012-09-21 | 2013-03-27 | 海门市沪海有色铸造有限公司 | Metal type low pressure casting structure with local pressing |
| CN105014042A (en) * | 2014-04-25 | 2015-11-04 | 烟台祥平冶金设备制造有限公司 | Pressure reduction-pressurization casting equipment and pressure reduction-pressurization casting technology |
| JP2016132016A (en) * | 2015-01-21 | 2016-07-25 | 日産自動車株式会社 | Low-pressure casting method and low-pressure casting apparatus |
| CN107614154A (en) * | 2015-05-22 | 2018-01-19 | 日产自动车株式会社 | Aspirate compression casting method |
| CN108311669A (en) * | 2018-03-13 | 2018-07-24 | 中信戴卡股份有限公司 | Aluminum vehicle wheel low pressure casting secondary pressurized technique |
| CN208004776U (en) * | 2018-06-07 | 2018-10-26 | 贵州华煜丰车轮制造有限公司 | A kind of air pressure supercharging device for wheel hub casting |
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